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their color
through cells in the villi of the small intestine
Leukemia is basically bad blood cells formed in the bone marrow that do not allow healthy blood to enter the blood stream.
Red Blood Cell's protect us from disease and other harmful substances that may enter your blood stream. -HorseLuv13
How long does it take Dilaudid to get into the blood stream.
White blood cells
You drink it
dosent
The spleen identifies "old" erythrocytes (RBCs) and destroys them. The life of an RBC is around 120 days.
Red blood cells start out in the marrow of bones. After about seven days they enter the blood stream and survive for about one hundred and twenty days.
The walls of the small intestines, the portal vein, and the liver.
Blood contains red blood cells. Red blood cells don't contain blood. Blood does not enter the red blood cell.